LOGIC is the art of thinking and reasoning justly; or, it may be defined the science or history of the human mind, inasmuch as it traces the progress of our knowledge from our first and most simple conceptions through all their different combinations, and all those
numerous deductions that result from variously comparing them one with another.
The precise business of logic therefore is, To explain the nature of the human mind, and the proper manner of conducting its several powers, in order to the attainment